Aero Precision Ar-15 Assembled Upper Receiver 16" 5.56mm Mid-Length

This AR-15 5.56mm 16" Mid-Length Upper Receiver from Aero Precision replicates the standard military M4 upper with one important addition. It has a longer, mid-length gas system that helps slow gas velocity for improved reliability in cycling (over the standard carbine gas system). You get same form-factor as an M4 with reduced risk of M4-type reliability problems. The AR-15 5.56mm 16" Mid-Length Upper Receiver comes fully assembled, lacking only a charging handle and bolt/carrier group, for shooters who prefer to choose those components to suit your specific needs. The 16" barrel of high-grade chrome-moly-vanadium carbon steel has a tough, corrosion- and scratch-resis Mfg: Aero Precision